cipso_v4_cache_init(9)

💅 cipso_v4_cache_init(9) 💅

okay so this is a page from the Kernel API Manual, and it's about one (1) tiny little function that has main character energy in a very specific way: it's the setup girlie. the "before anything else happens" girlie. no cap.

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✨ NAME ✨

cipso_v4_cache_init — literally just initializes the CIPSO cache. that's it. that's the whole job. and she does it flawlessly 💅

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🌸 SYNOPSIS 🌸

int cipso_v4_cache_init (void );

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🎀 ARGUMENTS 🎀

• void — no arguments, bestie. nothing. zero. she takes no input, she needs no input, she is complete on her own 🫶

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🦋 DESCRIPTION 🦋

so the way that this works is: cipso_v4_cache_init initializes the CIPSO label mapping cache. that's the vibe. ✨

and here's the important part — this function should be called before any of the other functions defined in this file. like, she goes first. she's the opener. respect the order or things get weird 😭

she returns zero on success, and negative values on error. so like, positive vibes = 0, and if something went wrong she'll hit you with a negative number (derogatory). ngl keep an eye on that return value, it's giving important information 💀

no cap: call her first. the other functions in the file are not gonna be nice about it if you skip the initialization step 🙈

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👑 SEE ALSO 👑

the kernel file is ./net/ipv4/cipso_ipv4.c and honestly the whole friend group is listed here — every single one of these, no skips, no cuts, periodt:

• cipso_v4_cache_entry_free(9)
• cipso_v4_map_cache_hash(9)
• cipso_v4_cache_invalidate(9)
• cipso_v4_cache_check(9)
• cipso_v4_cache_add(9)
• cipso_v4_doi_search(9)
• cipso_v4_doi_add(9)
• cipso_v4_doi_free(9)
• cipso_v4_doi_free_rcu(9)
• cipso_v4_doi_remove(9)
• cipso_v4_doi_getdef(9)
• cipso_v4_doi_putdef(9)
• cipso_v4_doi_walk(9)
• cipso_v4_map_lvl_valid(9)
• cipso_v4_map_lvl_hton(9)
• cipso_v4_map_lvl_ntoh(9)
• cipso_v4_map_cat_rbm_valid(9)
• cipso_v4_map_cat_rbm_hton(9)
• cipso_v4_map_cat_rbm_ntoh(9)
• cipso_v4_map_cat_enum_valid(9)
• cipso_v4_map_cat_enum_hton(9)
• cipso_v4_map_cat_enum_ntoh(9)
• cipso_v4_map_cat_rng_valid(9)
• cipso_v4_map_cat_rng_hton(9)
• cipso_v4_map_cat_rng_ntoh(9)
• cipso_v4_gentag_hdr(9)
• cipso_v4_gentag_rbm(9)
• cipso_v4_parsetag_rbm(9)
• cipso_v4_gentag_enum(9)
• cipso_v4_parsetag_enum(9)
• cipso_v4_gentag_rng(9)
• cipso_v4_parsetag_rng(9)
• cipso_v4_gentag_loc(9)
• cipso_v4_parsetag_loc(9)
• cipso_v4_optptr(9)
• cipso_v4_validate(9)
• cipso_v4_error(9)
• cipso_v4_genopt(9)
• cipso_v4_sock_setattr(9)
• cipso_v4_req_setattr(9)
• cipso_v4_delopt(9)
• cipso_v4_sock_delattr(9)
• cipso_v4_req_delattr(9)
• cipso_v4_getattr(9)
• cipso_v4_sock_getattr(9)
• cipso_v4_skbuff_setattr(9)
• cipso_v4_skbuff_delattr(9)
• cipso_v4_init(9)

like. that's forty-eight (48) whole references. she has a lot of friends and they're all linked here, iykyk 🔥

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okay that's the whole page!! this cutie lives in ./net/ipv4, dated October 2026, and it's filed under the Kernel API Manual (section 9, obvs). mwah 💖 bye bestie, go call your init function 🧚‍♀️✨